CVE-2026-28422

Severity CVSS v4.0:

Pending analysis

Type:

CWE-121 Stack-based Buffer Overflow

Publication date:

27/02/2026

Last modified:

28/02/2026

Description

Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in `build_stl_str_hl()` when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 2.20 LOW
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x

2.20

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://github.com/vim/vim/commit/4e5b9e31cb7484ad156f
https://github.com/vim/vim/releases/tag/v9.2.0078
https://github.com/vim/vim/security/advisories/GHSA-gmqx-prf2-8mwf
http://www.openwall.com/lists/oss-security/2026/02/27/11